Clear or translucent aqueous polyquaternary ammonium fabric softener compositions containing low solvent

US7018974B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Gayle Marie Frankenbach · Cincinnati, US
• Mark Robert Sivik · Lancaster, US
• Ruth Anne Murphy · Cincinnati, US
• Ellen Schmidt Baker · Cincinnati, US
• Marc Johan Declercq · Strombeek-Bever, BE
• Hugo Jean Marie Demeyere · Merchtem, BE
• Toan Trinh · Maineville, US
• Errol Hoffman Wahl · Cincinnati, US

Key dates

• Filing date: Sep 16, 2004
• Grant date: Mar 28, 2006
• Expiry date: Sep 28, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/0026
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Clear/translucent formulations comprise polyquaternary ammonium actives with lower, or no, solvent levels except the solvent which is normally present in the polyquaternary raw material stocks by choosing highly efficient principal solvents within a specific Clog P range, employing higher levels of polyquaternary ammonium actives, and/or augmenting the bilayer with surfactants and/or polar oils. Compositions with lowered solvent levels have at or below about 5% by volume of secondary dispersed phases, preferably below about 3% by volume of secondary dispersed phases, and more preferably below about 1% by volume of secondary dispersed phases. The most preferred compositions are essentially free of secondary dispersed phases. High-speed centrifugation easily and quickly reveals the % volume of secondary phase(s).